SD card real time data recorder, 3 PHASE POWER ANALYZER Model : DW-6092 * 3 phase/4 wire, 3 phase/3 wire, 1 phase/2 wire, 1 phase/3 wire * True rms measurement for ACA, ACV. * True power : W, KW, MW. * VA, KVA, MVA, VAR, KVAR, MVAR. * PF (power factor), phase angle. * KWH, KVAH, KVARH, PFH. * Voltage measurement range: 10 to 600 ACV * Current measurement range: 0.2 A to 1200 ACA. * Programmable CT ratio (1 to 600) and PT ratio (1 to 1000). * Real time data recorder with SD card. * RS232/USB computer interface. * Display all measuring electrical wave shape. * Patent: Taiwan, China, Japan, Germany, USA pending.